mirror of
https://gitee.com/milvus-io/milvus.git
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119 lines
3.0 KiB
Go
119 lines
3.0 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package paramtable
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import (
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"os"
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"path"
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"strings"
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"sync"
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"github.com/milvus-io/milvus/internal/util/metricsinfo"
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)
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// BaseParamTable is a derived struct of BaseTable. It achieves Composition by
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// embedding BaseTable. It is used to quickly and easily access the system configuration.
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type BaseParamTable struct {
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BaseTable
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once sync.Once
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// --- ETCD ---
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EtcdEndpoints []string
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MetaRootPath string
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KvRootPath string
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// --- Embed ETCD ---
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UseEmbedEtcd bool
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EtcdConfigPath string
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EtcdDataDir string
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}
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// Init is an override method of BaseTable's Init. It mainly calls the
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// Init of BaseTable and do some other initialization.
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func (p *BaseParamTable) Init() {
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p.once.Do(func() {
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p.BaseTable.Init()
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p.LoadCfgToMemory()
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})
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}
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// LoadCfgToMemory loads configurations from file into memory.
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func (p *BaseParamTable) LoadCfgToMemory() {
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p.initEtcdConf()
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p.initMetaRootPath()
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p.initKvRootPath()
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}
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func (p *BaseParamTable) initEtcdConf() {
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p.initUseEmbedEtcd()
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if p.UseEmbedEtcd {
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p.initConfigPath()
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p.initEtcdDataDir()
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} else {
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p.initEtcdEndpoints()
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}
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}
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func (p *BaseParamTable) initUseEmbedEtcd() {
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p.UseEmbedEtcd = p.ParseBool("etcd.use.embed", false)
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if p.UseEmbedEtcd && (os.Getenv(metricsinfo.DeployModeEnvKey) != metricsinfo.StandaloneDeployMode) {
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panic("embedded etcd can not be used under distributed mode")
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}
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}
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func (p *BaseParamTable) initConfigPath() {
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addr := p.LoadWithDefault("etcd.config.path", "")
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p.EtcdConfigPath = addr
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}
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func (p *BaseParamTable) initEtcdDataDir() {
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addr := p.LoadWithDefault("etcd.data.dir", "default.etcd")
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p.EtcdDataDir = addr
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}
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func (p *BaseParamTable) initEtcdEndpoints() {
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endpoints, err := p.Load("_EtcdEndpoints")
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if err != nil {
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panic(err)
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}
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p.EtcdEndpoints = strings.Split(endpoints, ",")
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}
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func (p *BaseParamTable) initMetaRootPath() {
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rootPath, err := p.Load("etcd.rootPath")
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if err != nil {
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panic(err)
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}
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subPath, err := p.Load("etcd.metaSubPath")
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if err != nil {
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panic(err)
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}
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p.MetaRootPath = path.Join(rootPath, subPath)
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}
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func (p *BaseParamTable) initKvRootPath() {
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rootPath, err := p.Load("etcd.rootPath")
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if err != nil {
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panic(err)
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}
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subPath, err := p.Load("etcd.kvSubPath")
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if err != nil {
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panic(err)
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}
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p.KvRootPath = path.Join(rootPath, subPath)
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}
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